Globby Gooey Gak

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In this activity, learners concoct some stretchy green goo called Gak. This activity will introduce learners to polymers, chemical reactions, and how scientists invent new materials. A quick explanation is included. [Activity is publicly available through a web crawler capture on]

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
$1 - $5 per student

Age Range:
Ages 4 - 11

Resource Types:
Activity, Experiment/Lab Activity


Materials List (per student)

  • white glue
  • water
  • Borax laundry booster
  • sauce pan
  • large stirring spoon
  • measuring cup
  • plastic or Styrofoam cup (8 to 12 oz.)
  • food coloring
  • a craft (or Popsicle) stick
  • an Adult to help!


  • Engineering and Technology
    • Engineering
      • Metallurgy and Materials Engineering
  • Physical Sciences
    • Chemistry
      • Chemical Bonding
      • Chemical Reactions
    • Structure and Properties of Matter
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
  • The Nature of Technology
    • The Design Process
      • Invention and Innovation

Informal Categories

  • Toys


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


Access Rights:

  • Free access



  • All rights reserved, California Science Center, 2011